I-5 South County Improvements Project
Construction Updates
OCTA, in cooperation with Caltrans, is constructing the I-5 Freeway Improvement Project between State Route 73 (SR-73) and El Toro Road. The project will improve 6.5 miles of I-5 through the cities of Mission Viejo, Lake Forest, Laguna Hills, and Laguna Niguel.
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Project Details
Today, nearly 360,000 motorists travel I-5 daily between SR-73 and El Toro Road. Transportation planners forecast traffic volumes will grow 25 percent by 2045. To address this travel demand, OCTA and Caltrans are working together to construct the I-5 Widening project from SR-73 to El Toro Road.
roadway
roadway- New northbound and southbound general purpose lane from Avery Parkway to Alicia Parkway.
- Extension of the second carpool lane from Alicia Parkway to El Toro Road, in both directions
structure
structure- Reconstruct Avery Parkway and La Paz Road interchanges, and improve Los Alisos Boulevard Bridge
- Modify all on- and off-ramps in project area
- Add new sound and retaining walls
operational
operational- Convert carpool lanes to continuous access, making it safer and easier for motorists to enter and exit the lanes at any time
- Add new, and reestablish existing, auxiliary lanes between interchanges to improve local connectivity and facilitate merging and diverging
- Install new overhead signs and lighting
- Restripe regular lanes within project limits
details
detailsLength
6.5 miles
Corridor Cities
Mission Viejo, Lake Forest, Laguna Hills, Laguna Niguel
Total estimated cost
$580 million
Schedule
Mid-2019 to Early 2025
Segment Overview
This freeway improvement project is being built in three segments and includes several roadway, structural and operational improvements such as new general purpose lanes, improved interchanges as well as on- and off-ramps
segment 1
SR-73 to Oso Parkway
January 2020 to Late 2024SR-73 to Oso Parkway
segment 2
Oso Parkway to Alicia Parkway
April 2019 to Mid-2024Oso Parkway to Alicia Parkway
segment 3
Alicia Parkway to El Toro Road
January 2021 to Late 2024Alicia Parkway to El Toro Road
Avery Parkway
Segment 1
roadway
- Improve all Avery Parkway on- and off-ramps
- Add northbound and southbound general purpose lane
- Extend second carpool lane from Alicia Parkway to El Toro Road, in both directions
structure
- Reconstruct Avery Parkway Interchange
- Add new retaining walls
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
Crown Valley Parkway
Segment 1
roadway
- Modify five on- and off-ramps at Crown Valley
- Add northbound and southbound general purpose lane
structure
- Add Major Retaining Walls
- Add Minor Retaining Walls
- Add Concrete Barriers
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
Oso Parkway
Segment 2
roadway
- Add northbound and southbound general purpose lane
structure
- Modify six on- and off-ramps at Oso Parkway
- Add sound and retaining walls
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
La Paz Road
Segment 2
roadway
- Add northbound and southbound general purpose lane
structure
- Reconstruct La Paz Road Interchange
- Add sound and retaining walls
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
Alicia Parkway
Segment 3
roadway
- Extend second carpool lane from Alicia Parkway to El Toro Road
structure
- Add retaining walls
- Modify on- and off-ramps at Alicia Parkway
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
El Toro Road
Segment 3
roadway
- Extend second carpool lane between Alica Parkway and El Toro Road
structure
- Reconstruct Los Alisos Boulevard bridge
- Add retaining walls
operational
- Convert carpool lanes to continuous access
- Add new, and reestablish existing, auxiliary lanes
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Special Alert
- I-5 South County Alert - Nov. 28, 2022
- I-5 South County Alert - Nov. 21, 2022
- I-5 South County Alert - Nov. 14, 2022
- I-5 South County Alert - Nov. 7, 2022
- I-5 South County Alert - Oct. 31, 2022
- I-5 South County Alert - Oct. 24, 2022
- I-5 South County Alert - Oct. 17, 2022
- I-5 South County Alert - Oct. 10, 2022
- I-5 South County Alert - Sept. 26, 2022
- I-5 South County Alert - Sept. 19, 2022
- I-5 South County Alert - Sept. 12, 2022
- I-5 South County Alert - Sept. 6, 2022
- I-5 South County Alert - August 29, 2022
- I-5 South County Alert - August 22, 2022
- I-5 South County Alert - August 15, 2022
- Traffic Signal Conversion – Ave. De La Carolta
- I-5 South County Alert - August 8, 2022
- I-5 South County Alert - August 1, 2022
- I-5 South County Alert - July 25, 2022
- I-5 South County Alert - July 18, 2022
- I-5 South County Alert - July 11, 2022
- I-5 South County Alert - July 5, 2022
- I-5 South County Alert - June 20, 2022
- I-5 South County Alert - June 13, 2022
- I-5 South County Alert - June 6, 2022
- I-5 South Weekly Alert - May 31, 2022
- I-5 South Weekly Alert - May 23, 2022
- I-5 South Weekly Alert - May 16, 2022
- I-5 South Weekly Alert - May 9, 2022
- Safe Driving Through Construction Zones - May 2, 2022
- I-5 South Weekly Alert - April 25, 2022
Contact the I-5 South County Improvements Project Outreach Team
If you have questions, please contact the Outreach Team by calling (949) 614-0202 or email i5SouthCounty@octa.net.
Para obtener más información sobre el proyecto, llame al (949) 614-0202 o envíe un correo electrónico a i5SouthCounty@octa.net.